Sigea, Kawamoto
Tpkyp Kodansha 1979
Buku Referensi
Sanki, Ichikawa, author
Harvard University Press, 1942
Buku Referensi
[publisher not identified], [date of publication not identified]
Buku Referensi
Takahashi, M., author
Taiseido Shobo, 1953
Buku Referensi
New York Regents 1979
Buku Teks